"Last week's CLI Magic column was about Trojan Scan, a useful
tool (still in alpha development phase) for warding off the bad
guys. I noted then that the utility was based on the lsof
command--actually, based on just one of the hundreds of
combinations of arguments used to tell lsof exactly what it is you
want from it. This week we're going to take a longer look at lsof,
and see a few of the other mysteries it can solve.
"Judging by the size of its man page, lsof is one of the most
complex commands available, but don't worry, we're going to keep
this simple. We have to, or a real system admin with years of
experience using lsof on multiple platforms--rather than a simple
home user like me--will have to write it..."
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